Pen



FIG. 1 is a front right perspective view of a pen showing my new design,with a pen tip at one end of the pen and a cap covering a highlightertip at the other end of the pen;

FIG. 2 is a rear right perspective view thereof.

FIG. 3 is a left side view of the pen shown in FIG. 1, with the capremoved from the highlighter tip;

FIG. 4 is a bottom plan view of the pen shown in FIG. 1;

FIG. 5 is a top plan view thereof;

FIG. 6 is a rear elevation view thereof;

FIG. 7 is a left side view thereof;

FIG. 8 is a front elevation view thereof; and,

FIG. 9 is a right side view thereof.

The ornamental design for a pen, as shown and described.